A systems-level evaluation of conservation agriculture within the UK

英国保护性农业的系统级评估

• 批准号: 2432286
• 金额: --
• 依托单位: Harper Adams University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2432286
• 关键词: systems; level; evaluation; conservation; agriculture

Soil degradation is one of the greatest challenges facing us today. Conservation agriculture is proposed as a means of reducing soil degradation associated with food production. Conservation agriculture is predicated on no-till management practice with direct drilling of seeds to achieve minimal disturbance of the soil combined with cover crops and the return of crop residues to the soil. The aim is to disturb the soil and its biological communities as little as possible, while facilitating them to do work that traditionally the plough and agrochemicals would otherwise do.This project aims to take a systems-level approach, comparing the performance of two agricultural management systems in a replicated and randomised experiment in which the agronomy is specifically designed for each system by experts in each management practice. This project will then investigate the impacts on soil health, both at the macro and micro-scales, as well as impacts on water flow, soil erosion, greenhouse gas emissions, and carbon footprints of the two management systems. Costs and returns will be analysed to economically evaluate risks and externalities of the two systems. This multidisciplinary approach will allow an objective investigation into the environmental and economic impacts of conservation agriculture for UK farmers and society.

土壤退化是我们今天面临的最大挑战之一。建议将保护性农业作为减少与粮食生产有关的土壤退化的一种手段。保护性农业以免耕管理实践为基础，通过直接钻探种子来实现对土壤的最小干扰，并结合覆盖作物和作物残留物返回土壤。其目的是尽可能少地干扰土壤及其生物群落，同时促进它们从事传统上由犁和农用化学品完成的工作。该项目旨在采用系统级方法，在重复和随机实验中比较两种农业管理系统的性能，其中每种管理实践的专家专门为每种系统设计农艺。然后，本项目将在宏观和微观尺度上调查两种管理制度对土壤健康的影响，以及对水流、土壤侵蚀、温室气体排放和碳足迹的影响。将分析成本和收益，以经济地评估这两个系统的风险和外部性。这种多学科的方法将允许对英国农民和社会保护农业的环境和经济影响进行客观的调查。